Well I was charging a number of NiMH batteries today. Some just topping up as I wasn't aware if they'd run down or not. Nealy done finishing off a pair of HiCapacity AA Duracell running 1A charge and also AA Ennloop same 1A. Its on my desk by my computer and noticed the display came on bright on its own. I never seen this before. I looked thinking maybe on of the cells come FULL and alerting me. But no, the 2nd line down blanks out and 3rd some values lost (mAh field zero'd) and then comes back on to normal, and again within seconds, occurring a number of times. The display never goes off nor the charge bolt symbols of charging. Weird and now one has finished FULL showing the true mAH charge of 2265 in my case while the other battery of the same type zero'd and at 48mAH now at full. Total of 3 AA were in at one time. Previous batteries charged and taken out were AA LAUD, AAA LADD, AAA ennloop.
The charger is new not that old. I don't even use it once a month so its rarely used and this likely one of the longer sessions, other than LiION which I 've not done in months.
Now what....its the C4-12 w/temp display.